||Katsu-Kimura Y, Nakaya F, Baba SA, Mogami Y. Substantial energy expenditure for locomotion in ciliates verified by means of simultaneous measurement of oxygen consumption rate and swimming speed. J Exp Biol. 2009 Jun212(Pt 12):1819-24. doi: 10.1242/jeb.028894. p.1819 left column bottom paragraphPubMed ID19482999
||Schmidt-Nielsen, K. (1984). Scaling: Why Is Animal Size So Important? Cambridge: Cambridge University Press.
||"The total energy consumption of Paramecium was estimated on the basis of the oxygen consumption. Fenchel and Finlay summarized the data of the total oxygen consumption rate measured
from the cells under various physiological conditions, such as
growing or starved cells at different temperatures (Fenchel and Finlay (1983)). They obtained 0.19–4.4X10^–9 l O2h^–1 for a single cell (Paramecium caudatum). These values can be converted to the power, 0.38–8.8X10^–5J/hour/cell, by the conventional transformation of liters of O2 into 20.1 kJ (primary source)."